Has anyone designed and set up a holdout test in Klaviyo to help determine their optimal email sending frequency? Just looking for tips and best practices for setting up such a test in Klaviyo, since the platform doesn’t offer an out-of-the-box solution for this, and I believe it requires several layers of multiple steps to pull it off.

I’ve read a few general online articles about setting up holdout tests, but nothing that has gotten into deeper specifics for this particular use case. Thought I’d ask in here. :-)

Thanks!